Table 1 - Data to be collected by PIRCS archive



In the tables below:


Note: A table of representative values is available for guidance when preparing output for the archive.

REFERENCE

ID Root Field
101 GRDLAT Latitude of each point on the horizontal grid used to report model output, given in the same order as the three-hourly output.
102 GRDLON Longitude of each point on the horizontal grid used to report model output, given in the same order as the three-hourly output.
103 GRDVRT The vertical levels used to report model output.
(See the format for transmitting model output for guidance, paying special attention to item 5 of the Binary Files instructions and line 6 of the ASCII file.)
104 TERRHT Two-dimensional field giving the terrain height in meters above mean sea level.
105 LNDSEA Two-dimensional field giving the land fraction of each grid cell. A value of 0 indicates that the grid cell is composed entirely of water (either lake or ocean) and 1 indicates that the grid cell is composed entirely of land. Intermediate values indicate fractional land coverage.



THREE-HOURLY

Model output reported at 00,03,06 ..., 21 UTC. For fluxes, the output is a three-hour accumulation (e.g. output at 12 UTC is accumulated from 9 UTC- 12 UTC). For mass and temperature, output is the value at the reporting time. Values are reported on the horizontal grid of the participating model.

All fluxes are positive downward.

ID Root Field Unit
--- --- Surface fluxes ---
201 SFSWIN incident solar (shortwave) radiation Joules m-2
202 SFSWRF reflected solar (shortwave) radiation Joules m-2
203 SFLWUP upward terrestrial (longwave) radiation Joules m-2
204 SFLWDN downward terrestrial (longwave) radiation Joules m-2
205 SFSENF sensible heat flux Joules m-2
206 SFLATF latent heat flux (evapotranspiration) Joules m-2
207 SFINTF heat flux from the atmosphere into the model domain below the atmosphere Joules m-2
208 PRECON convective precipitation mm
209 PRESTB stable precipitation mm
210 MOMFEW momentum flux into the ground: E-W component
(Direction is with respect to the earth's lat/long grid.) 		Nt-s m-2
211 MOMFNS momentum flux into the ground: N-S component
(Direction is with respect to the earth's lat/long grid.) 		Nt-s m-2
--- --- Top-of-atmosphere fluxes ---
301 TASWNT net solar (shortwave) radiation Joules m-2
302 TALWUP upward terrestrial (longwave) radiation Joules m-2
--- --- Mass ---
401 SFPRSS surface pressure Pa
402 SLPRSS sea level pressure Pa
403 PRCWAT precipitable water (water vapor only) mm
--- --- Temperature ---
501 SFTAIR surface air temperature (2 m level) K
502 SKNTMP skin temperature K




SIX-HOURLY

Atmospheric output sampled at 00, 06, 12, and 18 UTC. Output reported on the three-dimensional grid of the participating model.

ID Root Field Units
601 6HTEMP Temperature K
602 6HSHUM Specific Humidity kg kg-1
603 6HZVEL Zonal (east-west) wind
(Direction is with respect to the earth's lat/long grid.) 		m s-1
604 6HMVEL Meridonal (north-south) wind
(Direction is with respect to the earth's lat-lon grid.) 		m s-1
605 6HGEOP Geopotential height m
606 6HPRSS Pressure Pa




DAILY

Output reported on the horizontal grid of the participating model.

ID Root Field Unit
--- --- Air temperature at 2 meter elevation ---
1101 DYTMAX Daily maximum (period: 00 UTC - 00 UTC) K
1102 DYMXTM Time of daily maximum (See Note)
1103 DYTMIN Daily minimum (period: 0 UTC - 0 UTC) K
1104 DYMNTM Time of daily minimum (See Note)
--- --- Soil moisture ---
1201 DYSOIL Total amount of water in the soil column at 12 UTC mm
--- --- Runoff ---
1301 DYRUNF Accumulation over prior 24 hours (period: 0 UTC - 0 UTC) mm

NOTE: Times of min/max should be reported in seconds after 00 UTC.



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